– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Wed 22 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Wed 22 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 22 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 32°C on Wed afternoon, min 16°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 21°C on Sat afternoon, min 13°C on Mon night). Wind will be generally light. | ||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | |  |  | | | | | | | |
some clouds | cloudy | some clouds | rain shwrs | clear | clear | clear | clear | clear | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | |
Cloud base (m) | 4850 | 1750 | 2100 | 850 | 1700 | 1950 | 800 | 800 | 900 | 7600 | |||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.1 | — | — | — | — | — | 0.1 | 0.6 | 0.2 | 0.1 | 1.1 | 0.3 | 0.4 | — |
max °C | 32 | 27 | 22 | 23 | 20 | 22 | 25 | 21 | 19 | 21 | 16 | 18 | 21 | 18 | 14 | 19 | 18 |
min °C | 32 | 21 | 20 | 23 | 16 | 18 | 25 | 16 | 17 | 18 | 14 | 15 | 20 | 14 | 14 | 18 | 13 |
chill °C | 32 | 21 | 20 | 23 | 16 | 18 | 25 | 16 | 17 | 18 | 14 | 15 | 20 | 14 | 14 | 18 | 13 |
Freezing level m | 4600 | 4500 | 4350 | 4300 | 4150 | 4000 | 4050 | 3700 | 3300 | 3100 | 3550 | 3450 | 3400 | 3200 | 3200 | 3800 | 3750 |
 | — | — | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — |
 | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 32°C on Wed afternoon, min 16°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Sun night. Warm (max 21°C on Sat afternoon, min 13°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport | | ||||
BUOY-46118 | |||||
SHIP5137 | |||||
SHIP1317 | |||||
SHIP1720 | |||||
SHIP4575 | |||||
SHIP6313 | |||||
Abbotsford Airport |  |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.